Christopher, Nancy Geyer.
The North Shore Country Day School: Seventy Years of Community Learning. Winnetka, Illinois: The North Shore Country Day School, 1990.
Nancy Geyer Christopher, Ph.D. was a social studies teacher at the North Shore Country Day School from 1978-1990. She wrote this book on the history of the school for the celebration of the school's 70th year anniversary in the 1989-1990 school year.